“In about a percent of its entire history, astronomy has quadrupled its ontology. A new field, called multimessenger astronomy, has begun characterizing single cosmic events through multiple signal types. Already, light has been paired with gravitational waves and with neutrinos. It’s a reminder that science advances, not just by seeing better, but by inventing whole new categories of seeing."

- Michael Segal

http://nautil.us/issue/64/the-unseen/the-unseen